3rd Gen High Performance and Accessories (5.9L Only)Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

FTE resonator question

I have a 2005 CTD my truck is stock & for now plan on keeping it that way.I've been doing some research on lowing my Egt's & I see guys have lowered EGT's by cutting off the muffler. I hate the drone you can get when you get rid of the muffler. I saw a YouTube video about FTE resonators, can someone tell me if the 5"x30" will get rid of more drone noise than a 4"x30" or is it just over kill?